BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
61 
844. Hopkins, A. 14. Forest and shade tree inseets. I. Yellow locust. 
<Bull. No. 16, W. Ya. Agric. Exp. Sta., April, 1891, pp. 85-91, 
pi. 1. 
Treats of the locust Hispa, the locust borer, carpenter moth, locust midge, 
locust skipper butterfly, and a few others. 
845. Hopkins, A. D. Forest and shade tree insects. II. Black spruce. 
<Bull. No. 17, W. Ya. Agric. Exp. Sta., May, 1891, pp. 93-102. 
Reports of an investigation of decay of a forest of black spruce; due to 
Seolytidm. 
846. Hopkins, A. D. The cabbage maggot. <Ohio Yalley Farmer, 
March, 1892. 
847. Hopkins, A. D. Some bred West Virginia Braconkke. <Insect 
Life, v. 4, March, 1892, pp. 256-259. 
848. Hopkins, A. D. Methods of dealing with injurious insects. 
<Bull. No. 21, W. Ya. Agric. Exp. Sta., April, 1892, pp. 151-160, 
165-167. 
849. Hopkins, A. D. Injurious insects and how to deal with them in 
April. <W. Ya. Farm. Bull., v. 1, No. 1, April, 1892, 3 tigs. 
Remedies for Glisiocampa americana. 
850. Hopkins, A. D. The apple-tree tent caterpillar. <Ohio Yalley 
Farmer, May, 1892. 
851. Hopkins, A. D. Notes on a destructive forest-tree scolytid. 
<Science, v. 20, July 29, 1892, p. 64. 
Treats of Dendroctonus frontalis. 
852. Hopkins, A. D. The bean weevil. <W. Ya. Farm. Bull., v. 1, 
No. 5, September, 1892. 
853. Hopkins, A. I). The pine beetle of the Virginias. <Hardwood, 
v. 2, November 25, 1892, p. 7. 
Account of Dendroctonus frontalis. 
854. Hopkins, A. D. First announcement of the importation of the 
European bark-beetle destroyer into America. <Proc. Ent. 
Soc. Wash., v. 2, 1892, p. 353. 
855. Hopkins, A. I). Damage to forests by the destructive pine bark- 
beetle. <Insect Life, v. 5, January, 1893, pp. 187-189. 
Ravages of Dendroctonus frontalis. 
856. Hopkins, A. D. Pin-holes in chestnut. <Hardwood, v. 3, Feb¬ 
ruary, 1893, p. 5, 1 tig. 
857. Hopkins, A. D. Catalogue of West Virginia Scolytid® and their 
enemies. <Bull. No. 31, W. Ya. Agric. Exp. Sta., April, 1893, 
pp. 121-168. 
List of the species and tho food plants. 
858. Hopkins, A. D. Catalogue of the West Virginia forest and shade 
tree insects. <Bull. No. 32, W. Ya. Agric. Exp. Sta., May, 
1893, pp. 171-251. 
List of the species with food plants. 
